Low-temperature synthesis of CeB6 nanowires and nanoparticles as feasible lithium-ion anode materials

时间:2020-07-07作者:浏览量:60


Low-temperature synthesis of CeB6 nanowires and nanoparticles as feasible lithium-ion anode materials

作者:Wang, Z (Wang, Zhen)[ 1,2 ] ; Han, W (Han, Wei)[ 1,4 ] ; Kuang, Q (Kuang, Quan)[ 1 ] ; Fan, QH (Fan, Qinghua)[ 1 ] ; Zhao, YM (Zhao, Yanming)[ 1,2,3 ]


ADVANCED POWDER TECHNOLOGY


卷: 31  期: 2  页: 595-603

DOI: 10.1016/j.apt.2019.11.014


出版年: FEB 2020


文献类型:Article


查看期刊影响力


摘要

Metallic CeB6 nanomaterials were prepared via the low-temperature solution combustion method (nanoparticles) and high-pressure solid state reaction (nanowires). X-ray diffraction patterns and High-resolution transmission electron microscopy images reveal that CeB6 nanoparticles are highly crystalline and CeB6 nanowires are single crystals. The X-ray photoelectron spectroscopy analysis indicates that the cerium is present in the +3 and +4 mixed-valence state in CeB6. As lithium-ion anodes, CeB6 nanowires (nanoparticles) electrode achieves a capacity of similar to 531 (338) mA h g(-1) in the initial cycle and keeps a reversible capacity of similar to 225 (185) mA h g(-1) after 60 cycles. CeB6 nanowires are tested for 6000 cycles at 1000 mA g(-1), which shows a specific capacity approaching to the capacity at 100 mA g(-1) in spite of fluctuation within a narrow range, and keep similar to 168 mA h g(-1) after 6000 cycles, indicating a stable cycling performance owing to the excellent metal-like conductivity of (similar to 5.67 x 10(3) S m(-1)). The reason of capacity rising is that the reduction and oxidation levels of CeB6 electrodes are improved after the 2nd cycle with Li+ insertion/extraction. Meanwhile, kinetic analysis reveals that the Li+ storage mechanism is mainly controlled by a surface capacitive behavior. (C) 2019 The Society of Powder Technology Japan. Published by Elsevier B.V. and The Society of Powder Technology Japan. All rights reserved.


关键词

作者关键词:Cerium hexaboride; Lithium-ion battery; Anode; Nanowire; Nanoparticle


KeyWords Plus:HIGH-CAPACITY ANODE; ELECTROCHEMICAL PERFORMANCE; SINGLE-CRYSTALS; ENERGY-STORAGE; BATTERY; TRANSPORT; OXIDE


作者信息

通讯作者地址: Zhao, YM (通讯作者)


显示更多South China Univ Technol, Dept Phys, Guangzhou 510641, Peoples R China.

地址:


显示更多[ 1 ]‎ South China Univ Technol, Dept Phys, Guangzhou 510641, Peoples R China

      [ 2 ]‎ South China Inst Collaborat Innovat, Dongguan 523808, Peoples R China

显示更多[ 3 ]‎ South China Univ Technol, Guangdong Prov Key Lab Adv Energy Storage Mat, Guangzhou 510640, Peoples R China

显示更多[ 4 ]‎ Huazhong Univ Sci & Technol, Sch Mat Sci & Engn, Wuhan 430074, Peoples R China

电子邮件地址:zhaoym@scut.edu.cn


基金资助致谢

基金资助机构显示详情授权号

National Natural Science Foundation of China


51672086

Science and Technology Bureau of Guangdong Government

2017B030308005

Foundation of the Science and Technology Bureau from Dongguan Government

2019622163008

Fundamental Research Funds for the Central Universities


2018MS63

查看基金资助信息   

出版商

ELSEVIER, RADARWEG 29, 1043 NX AMSTERDAM, NETHERLANDS


期刊信息

Impact Factor (影响因子): Journal Citation Reports

类别 / 分类

研究方向:Engineering


Web of Science 类别:Engineering, Chemical